<script setup>
import {
  Edit,
  Delete
} from '@element-plus/icons-vue'

import {ref} from 'vue'

//文章分类数据模型
const categorys = ref([
  //默认样例数据
  {
    "id": 3,
    "categoryName": "美食",
    "categoryAlias": "my",
    "createTime": "2023-09-02 12:06:59",
    "updateTime": "2023-09-02 12:06:59"
  },
  {
    "id": 4,
    "categoryName": "娱乐",
    "categoryAlias": "yl",
    "createTime": "2023-09-02 12:08:16",
    "updateTime": "2023-09-02 12:08:16"
  },
  {
    "id": 5,
    "categoryName": "军事",
    "categoryAlias": "js",
    "createTime": "2023-09-02 12:08:33",
    "updateTime": "2023-09-02 12:08:33"
  }
])

//用户搜索时选中的分类id
const categoryId = ref('')

//用户搜索时选中的发布状态
const state = ref('')

//文章列表数据模型
const articles = ref([
  {
    "id": 5,
    "title": "陕西旅游攻略",
    "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
    "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
    "state": "草稿",
    "categoryId": 2,
    "createTime": "2023-09-03 11:55:30",
    "updateTime": "2023-09-03 11:55:30"
  },
  {
    "id": 5,
    "title": "陕西旅游攻略",
    "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
    "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
    "state": "草稿",
    "categoryId": 2,
    "createTime": "2023-09-03 11:55:30",
    "updateTime": "2023-09-03 11:55:30"
  },
  {
    "id": 5,
    "title": "陕西旅游攻略",
    "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
    "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
    "state": "草稿",
    "categoryId": 2,
    "createTime": "2023-09-03 11:55:30",
    "updateTime": "2023-09-03 11:55:30"
  },
])

//分页条数据模型
const pageNum = ref(1)//当前页
const total = ref(20)//总条数
const pageSize = ref(3)//每页条数

//当每页条数发生了变化，调用此函数
const onSizeChange = (size) => {
  pageSize.value = size
  articleList();
}
//当前页码发生变化，调用此函数
const onCurrentChange = (num) => {
  pageNum.value = num
  articleList();
}
//获取所有文章分类列表的数据
import {articleCategoryDeleteServe, articleCategoryListService} from '@/api/article.js'

const articleCategoryList = async () => {
  let result = await articleCategoryListService()
  categorys.value = result.data;
}
articleCategoryList();
//获取所有文章
import {articleListService} from "@/api/article.js";

const articleList = async () => {
  let params = {
    pageNum: pageNum.value,
    pageSize: pageSize.value,
    categoryId: categoryId.value ? categoryId.value : null,
    state: state.value ? state.value : null
  }
  let result = await articleListService(params);
  total.value = result.data.total;
  articles.value = result.data.items;
  //处理数据，将分类id转为分类名称
  for (let i = 0; i < articles.value.length; i++) {
    let article = articles.value[i];
    for (let j = 0; j < categorys.value.length; j++) {
      if (article.categoryId === categorys.value[j].id) {
        article.categoryName = categorys.value[j].categoryName;
      }
    }
  }
}
articleList();

//抽屉数据模型
import {QuillEditor} from '@vueup/vue-quill'//导入组件富文本编辑器
import '@vueup/vue-quill/dist/vue-quill.snow.css'
import {Plus} from '@element-plus/icons-vue'
import {useTokenStore} from "@/stores/token.js";
const tokenStore = useTokenStore();
//控制抽屉是否显示
const visibleDrawer = ref(false);
//添加表单数据模型
const articleModel = ref({
  title: '',
  categoryId: '',
  coverImg: '',
  content: '',
  state: ''
})
//提供上传成功的回调函数
const uploadSuccess = (result)=>{
  articleModel.value.coverImg = result.data;
}
//提供文章发布函数
import {articleAddService} from "@/api/article.js";
import {ElMessage, ElMessageBox} from "element-plus";
const addArticle = async (clickState)=>{
  articleModel.value.state = clickState;
  let result = await articleAddService(articleModel.value);
  ElMessage.success(result.msg? result.msg:"添加成功");
  visibleDrawer.value = false;
  await articleList();
  //清空模型数据
  for (let k in articleModel.value){
    articleModel.value[k] = '';
  }
}
//控制编辑窗口的弹出
const dialogVisible = ref(false)
//编辑窗口的表单校验
//添加分类表单校验
const rules = {
  title: [
    { required: true, message: '请输入标题名称', trigger: 'blur' },
  ]
}
//编辑文章函数
import {articleUpdateService} from "@/api/article.js";
const updateArticle = async ()=>{
  let result = await articleUpdateService(articleModel.value);
  await articleList();
  ElMessage.success(result.msg ? result.msg:"文章修改成功");
}
//编辑文章弹窗数据展示函数
const showDialog = (row)=>{
  articleModel.value.title = row.title;
  articleModel.value.content = row.content;
  articleModel.value.coverImg = row.coverImg;
  articleModel.value.state = row.state;
  articleModel.value.categoryId = row.categoryId;
  articleModel.value.id = row.id;
}
//删除文章函数
import {deleteArticleService} from "@/api/article.js";
const deleteArticle = (row)=>{
  ElMessageBox.confirm(
      '你确认要删除该文章吗?',
      '温馨提示',
      {
        confirmButtonText: '确认',
        cancelButtonText: '取消',
        type: 'warning',
      }
  )
      .then(async () => {
        let result = await deleteArticleService(row.id);
        ElMessage({
          type: 'success',
          message: '删除成功',
        })
        //刷新列表
        await articleList();
      })
      .catch(() => {
        ElMessage({
          type: 'info',
          message: '用户取消删除',
        })
      })
}
</script>
<template>
  <el-card class="page-container">
    <template #header>
      <div class="header">
        <span>文章管理</span>
        <div class="extra">
          <el-button type="primary" @click="visibleDrawer=true">添加文章</el-button>
        </div>
      </div>
    </template>
    <!-- 搜索表单 -->
    <el-form inline class="demo-form-inline">
      <el-form-item label="文章分类：">
        <el-select placeholder="请选择" v-model="categoryId" clearable>
          <el-option
              v-for="c in categorys"
              :key="c.id"
              :label="c.categoryName"
              :value="c.id">
          </el-option>
        </el-select>
      </el-form-item>

      <el-form-item label="发布状态：">
        <el-select placeholder="请选择" v-model="state" clearable>
          <el-option label="已发布" value="已发布"></el-option>
          <el-option label="草稿" value="草稿"></el-option>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="articleList">搜索</el-button>
        <el-button @click="categoryId='';state=''">重置</el-button>
      </el-form-item>
    </el-form>
    <!-- 文章列表 -->
    <el-table :data="articles" style="width: 100%">
      <el-table-column label="文章标题" width="400" prop="title"></el-table-column>
      <el-table-column label="分类" prop="categoryName"></el-table-column>
      <el-table-column label="发表时间" prop="createTime"></el-table-column>
      <el-table-column label="状态" prop="state"></el-table-column>
      <el-table-column label="操作" width="100">
        <template #default="{ row }">
          <el-button :icon="Edit" circle plain type="primary" @click="dialogVisible = true;showDialog(row)"></el-button>
          <el-button :icon="Delete" circle plain type="danger" @click="deleteArticle(row)"></el-button>
        </template>
      </el-table-column>
      <template #empty>
        <el-empty description="没有数据"/>
      </template>
    </el-table>
    <!-- 分页条 -->
    <el-pagination v-model:current-page="pageNum" v-model:page-size="pageSize" :page-sizes="[3, 5 ,10, 15]"
                   layout="jumper, total, sizes, prev, pager, next" background :total="total"
                   @size-change="onSizeChange"
                   @current-change="onCurrentChange" style="margin-top: 20px; justify-content: flex-end"/>
    <!-- 抽屉 -->
    <el-drawer v-model="visibleDrawer" title="添加文章" direction="rtl" size="50%">
      <!-- 添加文章表单 -->
      <el-form :model="articleModel" label-width="100px">
        <el-form-item label="文章标题">
          <el-input v-model="articleModel.title" placeholder="请输入标题"></el-input>
        </el-form-item>
        <el-form-item label="文章分类">
          <el-select placeholder="请选择" v-model="articleModel.categoryId">
            <el-option v-for="c in categorys" :key="c.id" :label="c.categoryName" :value="c.id">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="文章封面">

          <el-upload class="avatar-uploader" :auto-upload="true" :show-file-list="false"
                     action="/api/upload" name="file" :headers="{Authorization:tokenStore.token}"
                     :on-success="uploadSuccess" accept=".png,.jpg"
          >
            <img v-if="articleModel.coverImg" :src="articleModel.coverImg" class="avatar"/>
            <el-icon v-else class="avatar-uploader-icon">
              <Plus/>
            </el-icon>
          </el-upload>
        </el-form-item>
        <el-form-item label="文章内容">
          <div class="editor">
            <quill-editor
                theme="snow"
                v-model:content="articleModel.content"
                contentType="html"
            >
            </quill-editor>
          </div>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="addArticle('已发布')">发布</el-button>
          <el-button type="info" @click="addArticle('草稿')">草稿</el-button>
        </el-form-item>
      </el-form>
    </el-drawer>
    <!--编辑文章的表单-->
    <el-dialog v-model="dialogVisible" width="30%">
      <el-form :model="articleModel" :rules="rules" label-width="100px" style="padding-right: 30px">
        <el-form-item label="文章标题" prop="title">
          <el-input v-model="articleModel.title" minlength="1" maxlength="10"></el-input>
        </el-form-item>
        <el-form-item label="文章分类">
          <el-select placeholder="请选择" v-model="articleModel.categoryId">
            <el-option v-for="c in categorys" :key="c.id" :label="c.categoryName" :value="c.id">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="文章状态">
          <el-select placeholder="请选择" v-model="articleModel.state" clearable>
            <el-option label="已发布" value="已发布"></el-option>
            <el-option label="草稿" value="草稿"></el-option>
          </el-select>
        </el-form-item>
      </el-form>
      <template #footer>
        <span class="dialog-footer">
            <el-button @click="dialogVisible = false">取消</el-button>
            <el-button type="primary" @click="updateArticle();dialogVisible = false"> 确认 </el-button>
        </span>
      </template>
    </el-dialog>
  </el-card>
</template>
<style lang="scss" scoped>
.page-container {
  min-height: 100%;
  box-sizing: border-box;

  .header {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
}

.demo-form-inline .el-input {
  --el-input-width: 220px;
}

.demo-form-inline .el-select {
  --el-select-width: 220px;
}

/* 抽屉样式 */
.avatar-uploader {
  :deep() {
    .avatar {
      width: 178px;
      height: 178px;
      display: block;
    }

    .el-upload {
      border: 1px dashed var(--el-border-color);
      border-radius: 6px;
      cursor: pointer;
      position: relative;
      overflow: hidden;
      transition: var(--el-transition-duration-fast);
    }

    .el-upload:hover {
      border-color: var(--el-color-primary);
    }

    .el-icon.avatar-uploader-icon {
      font-size: 28px;
      color: #8c939d;
      width: 178px;
      height: 178px;
      text-align: center;
    }
  }
}

.editor {
  width: 100%;

  :deep(.ql-editor) {
    min-height: 200px;
  }
}
.editor {
  width: 100%;
  :deep(.ql-editor) {
    min-height: 200px;
  }
}
</style>
